CN108623201A - A kind of preparation method of large scale regenerating waste asphalt mixture - Google Patents
A kind of preparation method of large scale regenerating waste asphalt mixture Download PDFInfo
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- CN108623201A CN108623201A CN201810932364.1A CN201810932364A CN108623201A CN 108623201 A CN108623201 A CN 108623201A CN 201810932364 A CN201810932364 A CN 201810932364A CN 108623201 A CN108623201 A CN 108623201A
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- 239000000203 mixture Substances 0.000 title claims abstract description 88
- 239000010426 asphalt Substances 0.000 title claims abstract description 72
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 31
- 239000002699 waste material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000013461 design Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000012467 final product Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- 230000006872 improvement Effects 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 9
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004952 Polyamide Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000012492 regenerant Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Road Paving Structures (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of preparation methods of large scale regenerating waste asphalt mixture, include the following steps：The old asphalt mixture of recycling, it is old fine aggregate, old coarse aggregate that crushing and screening is carried out by separation of screen-aperture 4.75mm or 9.6 mm, the grading situation and the Bituminous concrete surface content in terms of bitumen aggregate ratio for detecting thick, thin two kinds of old Aggregates respectively;Old material processing；The old coarse aggregate for meeting code requirement by processing measure and be heated to 200 500 DEG C enter mix cylinder, it is thin it is old gather materials measure after into mix cylinder, new pitch amount needed for addition, again regenerative agent is added by the 35 ‰ of weight of gathering materials, after stirring evenly the drop temperature for reaching current art code requirement together, discharging is put in storage spare.Old material utilization rate height of the present invention, safety and environmental protection, cost are relatively low.
Description
Technical field
The invention belongs to highway construction technology field, a kind of large scale regenerating waste asphalt mixture is related in particular to
Preparation method.
Background technology
Asphalt road surface the objects such as repeats to roll using after one period, by geology, the hydrology, natural climate, vehicular load
Physicochemical acts on, and necessarily will appear different degrees of breakage and need to carry out maintenance, or because of highway upgrading etc., can be right
Original bituminous paving is discarded or is excavated, and only China will have number to be given up with the waste asphalt mixture of ten thousand tons, hundred million tonnes every year
It abandons, this is occurred as soon as constantly generates waste from stacking such as mountain land occupation and pollution environment on one side, corresponding again on one side constantly to exploit number
It is used to repair the roads with the new sand material of ten thousand tons, hundred million tonnes, road maintenance, forms the vicious circle of serious broken ring natural, ecological, it is related thus
Personnel are trying to explore to recycle approach to the science of waste asphalt sandstone mixture.
One of approach is recycled to waste asphalt mixture at present --- it is hot in-plant reclaimed to recycle, it is new sandstone
Gather materials, waste asphalt mixture, by two heating drying systems carries out that heating is respectively dried, it is then mixed according still further to waste asphalt
It closes material and mixes the production that ratio of the dosage no more than 30% carries out asphalt with the mode that new Aggregate is mixed.
There are the following problems for such technique：
1, because not carrying out technique improvement to waste asphalt material, cause the utilization rate of waste asphalt mixture relatively low（≤30%）, make
The recycle value of old material resource is little（Even process do not save old material utilization rate again it is less than normal in the case of increase cost）；
2, a large amount of pitch smog be will produce in waste asphalt mixture drying course and be mixed into drying equipment exhaust port one
And discharge, it is unfavorable for environmental protection, while also resulting in dust pelletizing system efficiency and declining and be damaged；
3, because new, old material is configured with separate drying system, cause equipment funds input to increase and increase with thermal energy consumption, make again
The production cost of raw asphalt is significantly increased；
4, it is that Bituminous concrete surface is avoided to be burnt and old sand stone aggregate temperature cannot be allowed excessively high in process of production, is dripped so as to cause regeneration
Green mixture drop temperature is relatively low, it is too fast to cool down in transportational process, is unfavorable for the construction that paves；
5, old asphalt mixture can stick screening system because it is heated in production process, lead to reclaimed asphalt mixture grading not
It can accurately control, hidden danger of quality is larger；
6, because containing waste asphalt in old asphalt mixture, equipment component can be sticked in heating production process, is used for a long time
Equipment damage and correlated performance can be caused to decline.
According to the current domestic above deficiency for recycling technique to waste asphalt mixture heating plantmix, to large scale, section
The research for rationally utilizing old asphalt mixture technique and method is learned, meaning is very great！
The present invention is exactly at present to technique existing for old asphalt mixture application method not science, waste of resource, utilization rate
The deficiency of low, high expensive, unfavorable environmental protection etc., is invented by practical exploration：The life of large scale regenerating waste asphalt mixture
Production method.
Invention content
A kind of old material utilization rate height for being there is provided it is an object of the invention to overcome disadvantages mentioned above, safety and environmental protection, cost compared with
The production method of low large scale regenerating waste asphalt mixture.
The object of the invention and its technical problem underlying is solved using following technical scheme to realize：
A kind of preparation method of large scale regenerating waste asphalt mixture of the present invention, includes the following steps：
（1）Classification：The old asphalt mixture of recycling, the screen-aperture 4.75mm or 9.6 mm that are set with current art specification as
Separation carries out crushing and screening, it is all can be more than by the old fine aggregate that is classified as of 4.75mm or 9.6 mm sieve pores, grain size 4.75mm or
9.6 mm's is classified as old coarse aggregate, and detects the grading situation of thick, thin two kinds of old Aggregates and old in terms of bitumen aggregate ratio respectively
Bitumen content;
（2）Old material processing：The design requirement of the quasi- bituminous paving constructed with reclaimed asphalt mixture of control, if slightly, thin two kinds it is old
Aggregate grading meets the requirements, and can it directly be entered mix cylinder, if not meeting, must just add the new tune that gathers materials of required corresponding grade
After whole grading is until meet design requirement, mix cylinder is entered back into；It is wanted if thick, the thin old middle Bituminous concrete surface bitumen aggregate ratio that gathers materials meets design
It asks, is directly entered mix cylinder, if not meeting, new pitch is added in old fine aggregate makes new, Bituminous concrete surface total content meet design oil
Stone is than requiring to enter back into mix cylinder;
（3）Heating and mix：After the old coarse aggregate for meeting requirement is measured by design mixture proportion, into Drying plus
Heat to being sent into mix cylinder after 200-500 DEG C, it is thin it is old gather materials measured by design mixture proportion after be sent into mix cylinder, with thick, carefully old collection
Expect to calculate the required new pitch amount added by the bitumen aggregate ratio control of design requirement into cylinder total amount, then by the 3-5 ‰ for weight of gathering materials
Addition regenerative agent makes Bituminous concrete surface modification meet current specifications standard, stirs evenly together；
（4）After regenerating mixture in detection mix cylinder reaches the drop temperature of current art code requirement, discharging is put in storage spare.
Wherein：The（3）It is containing can carry out technique improvement various additives up to standard to Bituminous concrete surface to walk regenerative agent.
A kind of preparation method of above-mentioned large scale regenerating waste asphalt mixture, wherein：Regenerative agent changes for waste asphalt
Property agent, prepared by Chinese patent CN200410021602.1, specific method is：Modified resinoid/carbolineum=0.5/9.5-5/5,
Wherein modified resinoid is bisphenol A type epoxy resin or polyamide, and thermosol is even mixed under the conditions of 40 DEG C -80 DEG C, naturally cold
But to obtain the final product.
The present invention compared with the existing technology, has clear advantage and advantageous effect, by above technical scheme it is found that this hair
It is bright be broken according to old asphalt mixture after, Bituminous concrete surface material be mostly Assembled distribution in grain size is less than normal gather materials in characteristic, will be old
Asphalt crushing and screening is old coarse aggregate（Grain size is more than 4.75mm or 9.6mm）, old fine aggregate（Grain size can pass through 4.75mm
Or 9.6mm sieve pores）Two kinds old to gather materials.After old asphalt mixture is sieved by such thick, fine crushing, in old coarse aggregate hardly
Containing Bituminous concrete surface, as long as it meets current art specification（That is JTG F40-2004《Standard specification for construction and acceptance of highway asphalt pavement》）Grade
With requirement（If not meeting, gradation adjustment must be just carried out）, so that it may old coarse aggregate is considered as common sandstone skeleton gathers materials and passes through height
It heats to realize large scale in warm path（30%-100%）Utilization；And the Bituminous concrete surface content in old fine aggregate is higher, then by adding
Add bitumen regenerant to be able to activation by the main pavement performance of Bituminous concrete surface material to restore（Regenerate）It is up to standard, so that it may to make old fine aggregate logical
Cross room temperature path（Pitch smog emission is generated to exempt high temperature）Gathered materials into mix cylinder with heat exchange pattern pair by high temperature skeleton
Its heating mix is uniform, realizes the largely or entirely utilization to old fine aggregate.I.e.：High temperature through the invention（Old rough set
Material）, room temperature（Old fine aggregate）The technological process of dual path, to realize old material large scale（30%-100%）, it is scientific and reasonable again
It makes profits use.
Specific implementation mode
Embodiment 1：
A kind of preparation method of large scale regenerating waste asphalt mixture, includes the following steps：
（1）Classification：The old asphalt mixture of recycling, with JTG F40-2004《Standard specification for construction and acceptance of highway asphalt pavement》Setting
The 4.75mm of one of screen-aperture is that separation carries out crushing and screening, all to be classified as old fine aggregate, grain by 4.75mm sieve pores
Diameter is classified as old coarse aggregate more than 4.75mm, and detects the grading situation of thick, thin two kinds of old Aggregates respectively and with bitumen aggregate ratio
The Bituminous concrete surface content of meter;
（2）Old material processing：It is old to thick, thin two kinds gather materials make grading and Bituminous concrete surface content detection, old aggregate grading meets " close-graded
The code requirement of type AC-20 ", but bitumen aggregate ratio is only 3.5% in thick, fine aggregate total amount, 1% is lacked by usual Construction control value, old
New pitch is added in fine aggregate makes new, Bituminous concrete surface total content（Bitumen aggregate ratio）Meet design requirement；
（3）Heating and mix：Gather materials slightly old by design mixture proportion（And defer to corresponding sieve pore percent of pass requirement as defined in specification）
After metering, after being heated to 300 DEG C into Drying, it is sent into mix cylinder；Old fine aggregate is pressed into design mixture proportion（And defer to specification rule
Fixed corresponding sieve pore percent of pass requirement）It is sent into mix cylinder after metering, 1% addition new pitch of cylinder total amount is entered with thick, fine aggregate, with
The 3.5 ‰ addition regenerative agents for entering cylinder total amount, stir evenly together with the old coarse aggregate of high temperature；
（4）Regenerating mixture temperature in detection mix cylinder reaches " JTG F40-2004《Asphalt highway construction technology is advised
Model》" after desired drop temperature, discharging is put in storage received shipment.
Wherein：The（3）Regenerative agent in step is waste asphalt modifier, by Chinese patent CN200410021602.1 systems
Standby, specific method is：Modified resinoid/carbolineum=0.5/9.5-5/5, wherein modified resinoid be bisphenol A type epoxy resin or
Polyamide, thermosol is even mixed under the conditions of 40 DEG C -80 DEG C, and natural cooling to obtain the final product.
Above example, because old aggregate grading is to meet《Specification》What AC-20 was required, realize AC-20 gradation types again
Raw asphalt old material 100% is utilized.
Embodiment 2：
A kind of preparation method of large scale regenerating waste asphalt mixture, includes the following steps：
（1）Classification：The old asphalt mixture of recycling, with " JTG F40-2004《Standard specification for construction and acceptance of highway asphalt pavement》" set
9.6 mm for determining one of screen-aperture are that separation carries out crushing and screening, all to be classified as old fine aggregate by 9.6 mm sieve pores,
Grain size is classified as old coarse aggregate more than 9.6 mm, and detects the grading situation of thick, thin two kinds of old Aggregates respectively and with oilstone
Than the Bituminous concrete surface content of meter;
（2）Old material processing：It is old to thick, thin two kinds gather materials make grading and Bituminous concrete surface content detection, old aggregate grading is close to " AC-25 "
Type close-graded, bitumen aggregate ratio 3.5%（0.5% is still lacked by Construction control value）, but the percent of pass of 16 millimeters of sieve pore is 95%, contrast gauge
Model（It should be 65%-83%）Requirement, illustrate that grain size is more than 16 millimeters of deficiency of gathering materials（It is partially thin）, participate in grain size>16mm、<19mm
Gather materials after 20%, the percent of pass of detection 16 millimeters of sieve pore of verification reaches 78%, has met requirement（Corresponding specification provides other sieve pores
Percent of pass also complied with the close-graded code requirement of " AC-25 " type）；
（3）Heating and mix：Old coarse aggregate is pressed into design mixture proportion（And it defers to the corresponding other sieve pore percent of pass of specification regulation and wants
It asks）After metering, after being heated to 500 DEG C into Drying, it is sent into mix cylinder；Gather materials carefully old by design mixture proportion（And defer to rule
The corresponding other sieve pore percent of pass requirements of model regulation）Enter mix cylinder, 0.58% that cylinder total amount is entered with thick, fine aggregate after metering（Because increasing
Added it is new gather materials 20% need to accordingly increase bitumen aggregate ratio 0.08%）New pitch is added, to enter 3 ‰ addition regenerative agents of cylinder total amount, with height
Mix is uniform together for the old coarse aggregate of temperature；
（4）After regenerating mixture temperature in detection mix cylinder reaches the drop temperature of code requirement, discharge the received shipment that puts in storage.
Wherein：The（3）Regenerative agent in step is waste asphalt modifier, by Chinese patent CN200410021602.1 systems
Standby, specific method is：Modified resinoid/carbolineum=0.5/9.5-5/5, wherein modified resinoid be bisphenol A type epoxy resin or
Polyamide, thermosol is even mixed under the conditions of 40 DEG C -80 DEG C, and natural cooling to obtain the final product.
Above example, because aggregate grading by AC-25 requirements adjustment participated in it is new gather materials 20%, therefore only realize AC-25 grades
Utilization with type reclaimed asphalt mixture old material 80%.
Embodiment 3：
A kind of preparation method of large scale regenerating waste asphalt mixture, includes the following steps：
（1）Classification：The old asphalt mixture of recycling, the 4.75mm of one of screen-aperture is set as boundary with current art specification
Point carries out crushing and screening, it is all can be by the old fine aggregate that is classified as of 4.75mm sieve pores, grain size is classified as old coarse aggregate more than 4.75mm,
And the grading situation for detecting thick, thin two kinds of old Aggregates respectively and the Bituminous concrete surface content in terms of bitumen aggregate ratio;
（2）Old material processing：It is old to thick, thin two kinds gather materials make grading and Bituminous concrete surface content detection knows that old aggregate grading meets《Specification》
" level of confidentiality distribution type AC-16 " code requirement, bitumen aggregate ratio 3.8%（1.2% is still lacked by Construction control value）, new drip is added in old fine aggregate
Blueness makes new, Bituminous concrete surface total content（Bitumen aggregate ratio）Meet design requirement；
（3）Heating and mix：Old coarse aggregate is pressed into design mixture proportion（And it defers to the corresponding other sieve pore percent of pass of specification regulation and wants
It asks）After metering, after being heated to 200 DEG C into Drying, it is sent into mix cylinder；Old fine aggregate is pressed into design mixture proportion（And defer to rule
The corresponding other sieve pore percent of pass requirements of model regulation）Enter mix cylinder after metering, while entering the 1.2% of cylinder total amount with thick, fine aggregate and adding
The 4 ‰ addition regenerative agents for adding new pitch, entering cylinder total amount, mix is uniform together with the old coarse aggregate of high temperature；
（4）After regenerating mixture temperature in detection mix cylinder reaches the drop temperature of code requirement, discharge the received shipment that puts in storage.
Wherein：The（3）Regenerative agent in step is waste asphalt modifier, by Chinese patent CN200410021602.1 systems
Standby, specific method is：Modified resinoid/carbolineum=0.5/9.5-5/5, wherein modified resinoid be bisphenol A type epoxy resin or
Polyamide, thermosol is even mixed under the conditions of 40 DEG C -80 DEG C, and natural cooling to obtain the final product.
Above example, because old aggregate grading meets《Specification》AC-16 requirements realize the regeneration drip of AC-16 gradation types
The utilization of green mixture old material 100%.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form, Ren Hewei
Be detached from technical solution of the present invention content, according to the technical essence of the invention to made by above example it is any it is simple modification, etc.
With variation and modification, in the range of still falling within technical solution of the present invention.
Claims (3)
1. a kind of preparation method of large scale regenerating waste asphalt mixture, includes the following steps：
（1）Classification：The old asphalt mixture of recycling, the screen-aperture 4.75mm or 9.6 mm that are set with current art specification as
Separation carries out crushing and screening, it is all can be more than by the old fine aggregate that is classified as of 4.75mm or 9.6 mm sieve pores, grain size 4.75mm or
9.6 mm's is classified as old coarse aggregate, and detects the grading situation of thick, thin two kinds of old Aggregates and old in terms of bitumen aggregate ratio respectively
Bitumen content;
（2）Old material processing：The design requirement of the quasi- bituminous paving constructed with reclaimed asphalt mixture of control, if slightly, thin two kinds it is old
Aggregate grading meets the requirements, it is directly entered mix cylinder, if not meeting, adds the new adjustment grading of gathering materials of required corresponding grade
Until after meeting design requirement, mix cylinder is entered back into；If thick, thin old middle Bituminous concrete surface content of gathering materials meets design requirement, directly into
Enter mix link, if not meeting, addition new pitch makes new, Bituminous concrete surface total content bitumen aggregate ratio meet design requirement in old fine aggregate
Enter back into mix cylinder;
（3）Heating and mix：After the old coarse aggregate for meeting requirement is measured by design mixture proportion, into Drying plus
Heat is sent into mix cylinder after arriving 200-500 DEG C；Old fine aggregate by feeding mix cylinder after design mixture proportion metering；With thick, thin old collection
Expect to calculate the required new pitch amount added by the bitumen aggregate ratio control of design requirement into cylinder total amount, then by the 3-5 ‰ for weight of gathering materials
Addition regenerative agent makes Bituminous concrete surface modification meet current specifications standard, stirs evenly together；
（4）After regenerating mixture in detection mix cylinder reaches the drop temperature of current art code requirement, discharging is put in storage spare.
2. a kind of preparation method of large scale regenerating waste asphalt mixture as described in claim 1, wherein：The（3）Step is again
Raw agent is containing can carry out technique improvement various additives up to standard to Bituminous concrete surface.
3. a kind of preparation method of large scale regenerating waste asphalt mixture as claimed in claim 1 or 2, wherein regenerative agent are
Waste asphalt modifier, preparation method are：Modified resinoid/carbolineum=0.5/9.5-5/5 is warm under the conditions of 40 DEG C -80 DEG C
Molten even mixed, natural cooling to obtain the final product.
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| CN201810932364.1A CN108623201A (en) | 2018-08-16 | 2018-08-16 | A kind of preparation method of large scale regenerating waste asphalt mixture |
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| CN201810932364.1A CN108623201A (en) | 2018-08-16 | 2018-08-16 | A kind of preparation method of large scale regenerating waste asphalt mixture |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403175A (en) * | 2018-12-07 | 2019-03-01 | 湖南鑫长胜材料科技有限公司 | A kind of asphalt pavement pit repairing method |
| CN110438866A (en) * | 2019-08-10 | 2019-11-12 | 深圳市市政工程总公司 | The optimum oil-stone ratio design method of Warm-Mix Bitumen Mixture |
| CN111662556A (en) * | 2020-07-15 | 2020-09-15 | 辽宁省交通科学研究院有限责任公司 | Efficient asphalt regenerant for large-proportion thermally-regenerated asphalt concrete and preparation method thereof |
| CN111718166A (en) * | 2020-06-24 | 2020-09-29 | 江苏东交智控科技集团股份有限公司 | Cold-mixing cold-paving asphalt mixture, preparation method thereof and asphalt pavement |
| CN112142369A (en) * | 2020-08-27 | 2020-12-29 | 江苏现代路桥有限责任公司 | Production process of recycled asphalt mixture |
| CN112174559A (en) * | 2020-11-09 | 2021-01-05 | 中国十七冶集团有限公司 | Waste asphalt pavement recycling material and preparation method thereof |
| CN113584988A (en) * | 2021-08-25 | 2021-11-02 | 苏州交通工程集团有限公司 | Waste asphalt mixture high-proportion plant-mixed hot recycling pavement and construction method |
| CN113929358A (en) * | 2021-10-15 | 2022-01-14 | 东南大学 | A method of recycling old asphalt pavement mixture based on epoxy resin system |
| CN114409321A (en) * | 2022-02-08 | 2022-04-29 | 范秋华 | High-performance foamed asphalt cold-recycling mixture and production method thereof |
| CN114573272A (en) * | 2022-01-26 | 2022-06-03 | 山东省路桥集团有限公司 | Regeneration method for microwave heating activation of old asphalt mixture |
| CN115818996A (en) * | 2022-10-28 | 2023-03-21 | 山西晋北高速公路养护有限公司 | Treatment method of waste asphalt mixture, recycled asphalt mixture and preparation method thereof |
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| CN113584988A (en) * | 2021-08-25 | 2021-11-02 | 苏州交通工程集团有限公司 | Waste asphalt mixture high-proportion plant-mixed hot recycling pavement and construction method |
| CN113929358A (en) * | 2021-10-15 | 2022-01-14 | 东南大学 | A method of recycling old asphalt pavement mixture based on epoxy resin system |
| CN114573272A (en) * | 2022-01-26 | 2022-06-03 | 山东省路桥集团有限公司 | Regeneration method for microwave heating activation of old asphalt mixture |
| CN114573272B (en) * | 2022-01-26 | 2023-03-14 | 山东省路桥集团有限公司 | Regeneration method for microwave heating activation of old asphalt mixture |
| CN114409321A (en) * | 2022-02-08 | 2022-04-29 | 范秋华 | High-performance foamed asphalt cold-recycling mixture and production method thereof |
| CN115818996A (en) * | 2022-10-28 | 2023-03-21 | 山西晋北高速公路养护有限公司 | Treatment method of waste asphalt mixture, recycled asphalt mixture and preparation method thereof |
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